lintz



(No Model.) 3 Sheets-Sheet 1..

J. HAAS & R. LINTZ. EMBROIDERING MACHINE.

No. 548,984. Patented Oct. 29, 1895.

ANDREW RGRMIAM.MOTO-LITNQWQHIRGTDKQC. 4

3 Sheets-Sheet 2..

TN N m G LA M m m S w Am B H M 5 (Nb Mddel.)

Patented Oct. 29, 1895.

UNIT D STATES PAT T Grrrcn.

JOI-IANNES HAAS, OF EIBENSTOOK, AND RICHARD LINTZ, OF BERLIN, GERMANY.

.EMBROlDERlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 548,98 4, dated October29, 1895.

Application filed February 12, 1894. Serial No. 499,936. (No model.)

To all whom it mayconcern:

Be it known that we, J OHANNES HAAS, residing at No. 1 Postplatz,Eibenstock, and RICHARD LINTZ, residing at No. 109 Griiner Weg, Berlin,Germany, subjects of the Emperor of Germany, have inventedcertain'Improvements in Sewing-Machines for Braiding or Oording, ofwhich the following is a specification. I 7

Our invention relates to sewing-machines of that class which isespecially adapted for braiding or cording, and in which the fabric isguided by means of a Presser-foot movable in all directions by means ofa crank-handle.

According to our invention we make use of a shuttle moving to and fro orreciprocating, and so construct the machine that any kind of sewing canbe employed for the purpose of sewing on braid, ribbon, strings ofpearls, or otherv strings consisting of one or several rows lyingparallel to one another. Thus not only is it possible to execute thesimple ordinary kind of needle-work with'this machine, but also zigzagstitching and such as is done with several upper threads. Further, cordscan be simultaneously sewed onto both sides of a fabric. Thisversatility is obtained by providing means whereby such a rotation isimparted to the rectilinear guide for the shuttle simultaneously withthe needle-bar that the path traversed by the shuttle remains constantlythe same relatively to the eye of the needle. The path of the shuttleand the needle-bar can thus never rotate in a direction opposite to eachother, and special importance is attached to the fact that theneedle-bar is prevented from rotating independently of the path of theshuttle. The required rotation is obtained by causing both themovably-arranged shuttle carrier and the needle-bar to be driven by thesame crank which serves for guiding the direction of the presser-foot.The sewing on of a lower cord simultaneously with an upper cord iseffected by attaching on the'support of the guide orv race in which theshuttle-carrier slides a cordguide which stands vertically below theupper cord-guide. With the same object a reelcarrier is attached to thesaid support. The lower part of the needle-bar is so jointed that it canbe shifted laterally by means of a suitable thruster, so that whenexecuting a zigzag line of sewing the needle always remains at rightangles to the fabric. When, however,

it is desired to sew on simultaneously two cords lying parallel to eachother side by side, each with its special thread, a rigid needle-bar ismade use of instead of a jointed needle-bar, which rigid needle-barcarries two needles.

To enable our invention to be fully understood, we will describe how itcan be carried into practice by reference to the accompanying drawings,in which Figure 1 is a side elevation of a sewing-machine constructedaccording to our invention. Fig. 2 is a front elevation of the same, andFigs. 3 to 8 are sectional views of details.

The up-and-down motion of the needle-bar c is effected from the mainspindle a? by means of spindles b and b, which are in connection withthe main spindle through bevelwheels. On a plate at the end of thespindle b, which runs horizontally in the head B, is placed a crank-pino which works in a groove in a curved or heart-shaped disk b fixed onthe feeder or thruster b and thus gives an up-and-down movement to thefeeder b, to which the needle-bar c is revolubly attached, Figs. 1 and2. l

The needle-bar is not rigidly attached to the feeder 12 but is suspendedfrom a grooved ferrule b Figs. 1, 2, and 3, which can rotate in a ringattached to the feeder b The needle-bar is secured to the ferrule 17 bymeans of a sleeve 12 which is pivotally connected to the ferrule bymeans of screws b the needlebar being secured in the sleeve b by meansof a clamping-screw b.

The upper end of the needle-bar is firmly held by the sleeve b andbelowthis point is flattened at the sides at 0 where it passes throughthe upper part of the main tube aor through suitable guides attached tothe latter, and is thus forced to follow the rotation of the tube a.This rotation of the tube a is effected by means of the crank-handle A,through the intervention of appropriate mechanism to be hereinafterdescribed. On the tube a is fixed a bevel-wheel p, which engages with asimilar wheel 10 upon the spindle p, Fig. 1. The horizontal spindle 10is driven from the vertical spindle p by means of a pair of bevel-wheels13 which are rotated by a similar pair of wheels p and spindle p fromthe crank-handle A.

The lower part of the needlebar is jointed to the main section of thesame c, so that the upper part 0 which is connected to the piece 12 actslike a connecting-rod. The part 0 moves in a vertical direction in alaterally-movable thruster 8, Figs. 3, 5, and 6, provided with acorresponding bore, which thruster thus acts as a piston-tube, and itscasing s is secured to the lower end of the tube a and rotates with thelatter. By the lateral movement of the thrusters the lateral shifting ofthe needle-bar is allowed, so that the needle can execute zigzagstitching when required. Above this thrusting mechanism the tubea issurrounded by a casing 72., Figs. 1', 2, and 6, which is secured to thehead B by means of an arm h, and on this casing is a second casing 71.provided with two annular grooves h and movable in avertical direction.On an arm 714, secured to the main tube a, a bell-crank lever is pivotedat h, one arm h of the said lever engaging with a spindle 8 which hasits bearing in the thruster 8, Figs.

and 6, while the other arm it engages with the lower groove h in thecasing 72 by means of a sliding block it so that a vertical movement ofthe casing It gives rise to a horizontal motion of the thruster s.

The vertical movement of the casing h is effected by means of the leverlo, Fig. 1, which is pivoted at 2' on the head B One end of the lever isengages in the upper groove 71. of the casing 72. and the other end isconnected by the removable and adjustable connectingrod is to thecranked lever [0 which is fulcrumed at t".

On the head B there are further attached two projecting brackets 1,Figs. 1 and 4, which carry a spindle Z having a cam Z mounted thereon.This spindle Z is rotated from the main spindle a. by means of the pairof wheels Z Figs. 1 and 4, and operates the cranked lever 70 by means ofthe cam Z. The arms of the levers 7c and which are connected by theconnecting-rod 7c, are slotted at their ends, and in the slots the pinsof the connecting-rod can be shifted for the purpose of altering thethrow of the needle. When the regulation has been effected, these pinscan be fixed in position on the lever-arms 7c and k by set screws 70 InFigs. 5 and 6 the extreme positions of the thruster s are shown. Thechange of the position of the thruster takes place at the highest pointof the needle.

The frame m, which guides the shuttle or the carriage or case of thelatter, is secured to a rotating spindle n, which spindle is so carriedby the bracket 0 that its axis of rotation coincides with the axis ofrotation of the needle-tube a. and needle-bar c.

The spindle n has its upper bearing in the table-plate at 71., Figs. 1,2, 3, and 8, and here carries a lower cord-guide 11 which is fixed inthe head of the spindle n, so that it shares in the movement of rotationof the latter, but cannot rotate independently thereof. The hole for thecord in the lower cord-guide n is located exactly opposite the hole forthe cord in the upper cord-guide 61 The reel-carrier n for the lowercord-reel n is fastened on the spindle n. Rotation is imparted to thespindle n and with it to the frame on simultaneously with the uppermembers, the tube CL and needle-bar c, from the crank-handle A, by meansof the pair of bevel-wheels 0', the spindle 0 and the pair ofbevel-wheels 0 Motion is imparted to the shuttle from the main spindle aitself. Upon this latter is mounted an eccentric f, Fig. 1, theeccentricrodf of which is jointed to the end of the arm f of the lever jf which has its fulcrum atf The free forked end of the arm f of thelever engages by means of suitable sliding blocks in the annular grooven of the easing 12. Figs. 1 and 2, which fits loosely around the spindlen, so that the lever-arm causes a vertical motion of the casing nindependently of the movement of rotation of the spindle 47.. On an armn", fixed to the spindle at, there is pivoted at n a cranked lever 17?.m the arm m of which engages with the annular groove n in the casing nby means of suitable sliding blocks, and is thus set in motion. The freeend of the other arm m is jointed to the carriage m of the shuttle bymeans of the link m and elfects the to-andfro movement of the shuttle.If instead of producing a zigzag kind of sewing with the machine it isdesired to sew the cord on with straight stitching in the ordinarywaythat is to say, to communicate a simple up-anddown motion to theneedle-the connectingrod 70' must be removed by loosening the screws 70,and the thruster s be adjusted in its mid-position, and be secured inthis position by means of the set screw 8 If it be desired to sew onsimultaneously two cords lying parallel to each other, side by side,each with special thread, a rigid needlebar 0, such as is shown in Fig.7, is made use of, instead of a jointed needle-bar c, which rigidneedle-bar carries two needles. In this case, too, the thruster .9 mustbe placed in its mid-position and the connecting-rod 70 be removed.

If a cord or braid is to be sewed onto the fabric above and below, aneedle-bar with a single needle is made use of, the thruster 3 being, asbefore, placed in its mid-position. A reel of cord 12 is then placedupon the reelcarrier a upon the spindle n and the end of the braid drawnupward through the cordhole in the lower cord-guide m The cord run offfrom the upper cord-reel d having then been drawn through the cord-holeof the upper cord-guide d the fabric can be inserted between the cords,as shown in Fig. 8. The upper cord can be guided along the needle-bar bybeing threaded into the tube a at (P, Fig. 1, and out again at (i Fig.3. The upper sewing-threads are then drawn from the reels 0 which areplaced upon the reel-carriers c, in the usual way, through the threadtension 0 and thread-lever 0 Through proper openings provided in theplate 0 the thread passes downward into the tube-piece c and through thethread-passage 0 provided in the needlebar, it reaches the needle, Figs.1 and 3.

We claim as our invention-- 1. A sewing machine for braiding or cording,provided with a needle bar jointed at two places whereby the middleportion forms a link, a presser-foot movable in all directions, a crankhandle and connections for movingthe presser-foot, in combination with athruster adapted to move laterally only and having a vertical openingfor the passage of the lower partof the needle bar, and means forreciproeating the thruster, whereby when executing a zigzag line ofsewing the needle always remains at right angles to the fabric,substantially as set forth.

2. A sewing machine for braiding or cording, provided with a needle barjointed at two places whereby the middle portion forms a link, apresser-foot movable in all directions, a crank'handle and connectionsfor moving the same, a thruster provided with a vertical opening for thepassage of the lowest part of the needle bar, and connections betweenthe main driving spindle of the machine and the thruster adapted toimpart a laterally reciprocating motion to the said thruster, the saidconnections being adjustable for altering the length of'movement of thethruster and also for preventing the lateral movement of the thruster,substantially as set forth.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

JOHANNES HAAS.

RICHARD LINTZ.

Witnesses:

RICHARD SCHMIDT, ROBERT MIOHALSKY.

